Limited transportation
There were no jobs in the cities.
grow in car sales
The automobile industry. In particular public transportation (the diesel engine).
Widespread availability of automobiles.
New Railroad lines :)
The growth of suburbs offered many opportunities for business owenrs
The growth of suburbs has changed the American landscape. There are many natural areas left in the United States. Many American cities are surrounded by suburbs. The United States is known for its great natural beauty.
The growth of suburbs caused many new types of business to do well. Apex
the growth of suburbs encouraged innovation in business (apex)
Certainly; in the United States he return of men from the war in the second part of the 1940s as well as the prosperity entailed by the growth of the American economy meant that suburbs grew as well.
There were no jobs in the cities.
Improvements in transportation
There were no jobs in the cities.
The growth of malls and supermarkets (apex)
The growth of malls and supermarket
The one thing that helped to spurn the growth of the suburbs was the need for laborers to support factory operations, which were located in urban areas.
grow in car sales